Question

Find the area of four walls of room if its length 12m, breadth 10m, height 7.5m.

Answer 1

area of four walls = 2h( l+b)
2×7.5 (12+10)
15×22=330mtr square
I hope it help you....

Answer 2

Answer:

$Area\:of \:four \:walls \:of \\the \:room (A)=330\:m^{2}$

Step-by-step explanation:

Dimensions of a room:

Length (l) = 12 m,

Breadth (b) = 10 m,

Height (h) = 7.5 m;

$Area\:of \:four \:walls \:of \\the \:room (A)=2(l+b)h\\=2(12m+10m)\times 7.5 m\\=2\times 22\:m \times 7.5\:m\\= 330\:m^{2}$

Therefore,

$Area\:of \:four \:walls \:of \\the \:room (A)=330\:m^{2}$

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